Lock.



R. SHOELL.

LOCK.

APPLICATION FILED MAE.24,1909.

atented D60. 14a, w09.

4 SHEETS-SHEET l.

' [IVI/E N T OR c' UL, f f, i www Adame] R. SGHOELL.

LOCK.

l APPLI-OATION FILED MAB.24,1909. 943,637.

Patented Dec. 14, 1909.

4 SHEETS-SHEET 2.

ITNESSES INI/ENTOR SGHELL.

LOCK. APPLIOATION FILED MAR.24,1909.

Paen'ted Jee. 3141, 1909. l SHEETS-SHEET 3.

Home] R, SCHOELL.

LOCK. APPLICATION FILED MAB.24,1909.

Patented Dec. 14, 1909.

4 SHEETS-.SHEET 4..

J8 lf [N VEN TOR lill/111111111111119:

f lll f l Wl T NE SES Original application led August 1S, 1908, SerialNo. 449,317.

pin 11 secured to the case l.

provided with four arms or members 12, 13,

UNITED STATldPATENT OFFICE. Y

REINHOLD SCHOELL, 0F STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

LOCK.

Specification of Letters Patent,

Patented Dec. 14, 1909. Divided and this application f 'ied March 24,

Serial No. 485,446.

To all whom it may concern:

Be it known that I, RnINHoLD Sonoma., of Stamford. in the county ofFairfield and State of Connecticut, have invented certain new and usefulImprovements in Locks; and l do hereby declare the following to be afull, clear, and exact description vof the' invention. such as willenable others skilled in the art to which appertains to make and use thesame.

My invention relates to an improvement in locks, and is a division ofapplication No. 449,317. tiled b v me lAugust 19th, 1908.

The object of this invention is to provide improved means for indicatingboth on the inside and outside, the condition of the lock, and itconsists in the parts and combination ot' parts as will be more fullydescribed and pointed out in the claims.

ln the accompanying drawings, Figure 1 is a View ot' 'the lock from theouter side showing two ke'v cylinders and an indicator. Fig. 2 is asimilar view from the innerl side showing the thumb piece by which thelatch bolt is locked from the inside. Fig. 3 is a vieuv ot' the lockwith the cover plate removed. showing thc auxiliary bolt retracted andthe latch bolt unlocked and free to be retracted by the knob or byeither theupper or lower cylinder lock. Fig. 4 is a similar view showingthe parts in their positions when locked from the inside by the thumbpiece the Jface plate of the lock case and its outer escutcheon beingremoved and shown to the right of the lock case. Fig. 5 is a viewshowing the slide 45 in its intermediate position, and Fig.4 6 is a viewinl section of the outside indicator.

1 represents a lock case, 2 the latch bolt and the auxiliary bolt, thelatch bolt and the auxiliary bolts being forced outwardly by syn-ings inthe ordinary manner.l

4 is a lever actuated by the hub or roll back 5, through which the sindle 6 of the knob 7 passes, the free end oiP lever 4 engaging crosshead 8 'on the inner end of the stem 9 of the latch bolt.

10 is a deadlocking. lever mounted on the This lever is 14 and l5, thefirst of which lies in the path of cross head 16 on the stem 17 of theauX- iliary bolt 3,'and when the bolt is projected,

is engaged by said cross head and' bolts deadlocking member 13 of lever10 out of the path of bolt 2, thus leaving the latter free to beforced'inwardly as the door is closed In the operation of thelock, theauxiliary bolt 3 1s adapted to engage the strike plate and be heldretracted when the door is closed, and when in such retracted position,it releases 'thefdeadlocking `lever 10, thus permitting the spring 18 toturn the latter in a direction to bring the end of the arm 13 in rear ofthe bolt 2, (which when the door is closed, 'has entered its seat in thestrike plate) thus deadlocking the bolt against retraction, by a. thininstrument in sei-ted against the bevel face of the bolt intermediatethe face and strike plates of the lock.

19 is the actuating lever of the upper cyl-- inderV lock. This lever ispivotally mounted on the pin 20,and is provided with a spring 21 whichtends to hold shoulder 22 ot the lever 1.() away from the cross head Sof bolt 2, its movement away from said crosshead, being limited by thefixed stop 23.

Mounted on pin 1l, and resting in front of and against the deadlockinglever 10, is the cam lever 24, provided at its free c nd, on its innerside with a lug 25 resting 1n contact With the inclined face 26 at thefree end ot bolt actuating lever 19, and at its free end, on its outerside With an integral lug 24a, adapted to be engaged by the cam 27 onthe inner end of the revolving plug 28 ot' the upper cyligpder lock 29a,hence when the plug 28 is'turiied by its proper key,..its cam 27 engageslug 24, and turns cam lever 24, thus moving its 1ug"2 in contact Wlththe inclined face 26 of lefver This engagement of the lever'24 withlever19, turns the latter on its pivot 20 in a ,direction to cause itsshoulder 22 to engage and move the cross head 8 rearwardly in adirectiony to retract bolt2.

Mounted on pin 11, in contact With and in front of cam lever 24, is theauxiliary deadlocking lever 29. This lever 29 is provided with threearms or members, the arm 30 of which is provided With a pintle 31carrying one end'of the connecting bar 32, the opposite end of said barbeing pivotally connected to pintle 33 on cam lever 34, pivoted nearthe'lower end of the lock case 1,- and in a position where itsfree end35 may be engaged, and the lever moved,r by the cani 36 carried by the'plug 3T of the lower cylinder lock 88. Lever 29 is also provided with alug 40, which rests above and in contact with the upper edge of camlever 24.

The upper cylinder lock 29 together with the lower cylinder lock 38, areaccessible only from the outside of the door, the upper lock beingoperable by one or a plurality ot' keys,

y such as guests or change key and anV emergency key, and the lower lockbeing oper able by one or a plurality of keys, such a's maids and masterkeys.

From the foregoing it will be seen that the bolt Q may be retracted bythe lower lock 38 through lever '34, bar 32, auxiliary deadlocking lever29, lug 40, can". lever 24 and bolt'actuating lever 1 9, While `the bolt2 may be retracted by the upper lock through cam lever 24 and boltactuating lever 19. When the bolt 2 is not deadlocked, it may also beretracted by the knobs from either side of the door. i

When the door is closed, and the bolt deadlocked by the lever 10, thelatter must, in order to release the bolt, be moved out of the path ofthe latter by'mechanism actuated by the thumb piece. from the inside, orby the keys of the cylinder locks 29a or 38, from the outside. This isaccomplished by the key locks from the outside 'through the arm 15, onlever 10, normally 'resting in the ath of the free end of the boltactuating ever 19. This lever 19 as previously exlained, is actuated byboth locks, and as it 1s turned its free end engaging shoulder 41 on arm15 of lever 10, turns the latter in a direction to elevate thedeadlockiug arm 13, and holds it in such position until the lever 19 hasbeen released.

f The bolt is actuated from the inside by the knob, and is locked fromthe inside by the thumbpiece 42. This thumb piece is conneeted to thehub 43, to which is pivotally connected one end of the link 44, theopposite end of said link being connected to the slide 45. This slide 45is mounted in the lock case above the bolt Qand is adapted to be movedtoward and away vfrom the face plate 46 of the lock, by the thumbr piece42, and is yieldingly held in its several positions 48 formed lin thelock case near the top thereof. There are three notches 4S in the lockcase, and when the toothed end ol the spring 47 is in thel notch't'wthest removed from the face plate 46, the arm 13 of deadlocking'lever 10, will be held out of the path of the bolt by the engagementoit' the slide 45 with the arm ll o the deadlocking lever 10 thusholding arm 13 of the latter 'out ot' the path or bolt 2 and permittingthe latter to be freely actuated by the knob from either side olthedoor; when the toothed end of nearestthe face plate of the-lock, whichis the position into which the parts are moved by the thumb piece whenlockingv the door from the inside, )the shoulder 50, to be hereinafterreferred to, on the slide 45 rests in 4the path of armrl on lever 29thus deadlocking the latter and preventing the bolt from being actuatedlby the lower cylinder lock, which a:- previously explained, `is adaptedto be actuated by the inside key and by a master key. T his lastposition described, represents the position of the parts when the guestis in his room and the door looked.

lVhcn the door is closed and the slide 45 is in its position against theface plate 46 ot' The lock, the bolt n'ill vbe deadlocked against theknobs and also against the lower lock 3S, but may be opened by theguests key or emergency key in the upper lock. When the door is open.the auxiliary bolt., as before explained, holds the deadlocking' arm 13ot' lever l0, out ot' the path of the bolt lt. Y

when the door is open. the slide 45 be moved by thumb piece 4Q, eitherthrough accident or design, into its position adjacent the face plate46, and the door be thef-lfciosed, the direct `pressure oi the head ofthe bolt against the slide, will overcome the friction o'l the spring 4Tand forcibly push the slide. rearwardly to its innermost position. Theslide in its inward movement, makes contact with the short arm 14 ofdeadlockingl lever l0, thus turning the latter vin a. direction to carryits arm 13 out of the path ot' the bolt 2 so that When the door reachesits closed position, the bolt Will be unlocked or free to be retractedby 'the knob.

rlhe bolt is locked from the inside solely by the thumb piece and islocked from the outside 'by turning the plug of either cylinder lock inone' direction, and is unlocked loo from the outside bv turning the plugof the lock in the opposite direction.

vlt will be seen that when the door is closed and the slide 45 is in itsposition farthest removed from the face plate -l-6."the deadlockingl arm12:3 of the deadlocking lever 10 will be held out of the path of thebolt 2, by the venga gement of the slide 45 with the arm llt ot thedesn'llockinglever 1'0, thus leaving' the bolt 2 freel to be actuated bythe knobs. lf the door be closed with the parts in the position lastdescribed, and the guests, maid s or other key be inserted and turned tothe left, a Awhole revolution, or in the direction opposite to thatwhich it turned to unlock the lock, the arln 29" ot the auxiliarydeadloclring lever 2t), shifts the slide 45 toward face plate 4G incenter notch. a distance. sutticientto release the arm 14 and thus per-5 mit the deadloclting lever to turn until, its arm 13 is in a positionto deadlock the bolt. When the door is locked from `the inside by thethumb piece 4Q. the shoulder 50 on the slide forms an abutment for thearm 51 on they auxiliary deadloeking lever 2S). and

"a's tlilelower lock 38 transmits motion to bolt actuating lever throughlever Etat, bar R2. .auxiliary deadloclting lever Q9, and cam l.ile've'r stinthe order namethit follows that 15 if theauiili'aiydeadlocking lever be dogged bythelid'e plate, the bolt cannot beretracti'ed byfthe lower lock, but istree to be retracted by anemergency key or the guests key introduced in the `upper lock, whichopcrates directly through cam lever 24 and bolt -retracting'lever 19. f

JA For.- the purpose otl indicating on the ininthe-outer escutcheonplate :36 above the npper lock-29. This plug has an angular outer end'which rests in ahcorrespondingly shaped opening in escutchepn plate 56,the shape ot the vplug' and the opening in the escutcheon plate,preventing the plug from rotating i 4o `aattfer the parts have beenassembled. The

- plug passes tlii` 'igh the door in rear ot the escutelzeon. 'platef5.6, and its inner screw ,threaded eind` is vscrewed into the plungerG1 mounted in the sleeve 56a carried by, andv 4.5` projecting inwardlyfrom the loclrjcase. i -This plunger (3l 'is provided at itsinner endwith a head 57 against which one end, ot the spring bears, the springtending yto normally hold the .plug retracted with its 5o outer endapproximately tlush with the outer face ot the escutcheon plate jt'whiehis its normal position when the door is not locked. The slide isprovided with a tail piece 55) provided at itsI rear end with a4 cam G0adapted when'the slide 45 is moved to its position adjacent to the t'aeeplate 4G ot the lock to engage the plunger ol and move the latteroutwardly causing the. outer end ot plug 55 to project. beyond theescutcheon 6o plate, and indicate by its position., which can be seen bythe cha mbermaid or other person on the outside, that the room is lockedfrom the inside.

By making the indicator ot two parts eX- tensible by reason of theirthreaded connection, the indicator may be adjusted as to length so as tobe accurately fitted to doors ot ditl'erent. thiekiiesses.

1When the door is locked from the outside by a key. the slide l5 is onlypushed one tooth, which is not sufiieient to cause the cam toerigagc theplunger. consequently when the indicating plug isv in. and the doorlocked,'it indicates at once to the maid that the roomis empty.

It is evident that eliangesin the construe tion and relative arrangementof the several parts might. be made without avoiding my invention andhence I would have it. understood that I do not restrict myself to theparticular construction and arrangement' of parts show-n and described,but- Having fully described my invention what I claim as new and desireto secure by Letters-Patent, i t-f 1. In a loc the combination with abolt and a deadlocking lever, ot` a slide for shifting said lever, athumb piece operable trom the inner side\ of the door tor shitting saidslide and an indicator actuated by the thumb piece and showing through aslot in the. outer escntcheon plate.

.ZjThe combination with a bolt, a deadlocking` lever, a slidetorshifting said lever.,

and means operable from the inside ol the door for actuating the slide,ot an indicator plug actuated by the slide, the said plug normally projeeting into the outer escuteheon plate, land adapted to have its outerend projected beyond the outer fare ot said cscutcheon plate, whenthe-slide is in one position.

3. In a lock, the combination with a bolt. a clogging lever therefor andmeans Jfor shitting said lever, ot a thumb piece opf erable from theinside ot the door Vtor artuating said lever shitting means. anindicator movable in a slot. in the outer esruteh- 'con plate, and meansintermediate the thumb piece and indicator whereby the latter isactuated by the former.

el. In a lock, the. combination with a bolt, a clogging lever thereforand means for shitting said level' to a position to release the bolt, ofa longitudinally movable indi-v cator plug passing through 'the outerescntchcon plate, and actuated in one direction by the dogging levershifting means.

In a lock, the combinationnvith a bolt, a dogging lever Jfor same, meansfor shitting said lever to a position to release the bolt and a thumbpiece for operating said shit'ting means, of inside and outsideindicators actuated by said thumb piece, for indicating on both sides oithe door the condition ot the lock.

6. In a lock, the combination with a. bolt, a (logging lever for same,means for shifting said lever to a position 'to release the bolt andmeans, including ar finger piece, for

of a rotary movable indicator visible atone side of the door, and alongitudinally movable indicator visible from thc other side of the lockmechanism whereby they indicate the condition of the lock.

9. In a lock, the combination with two indicators one visible from theinner side of the door and the other visible at the outside, of a thumbpiece operatively connected with bothv indicators for actuating salue.

10. In a lock, the combination with two indicators, one visible from theinner side of the door and the other Visible at the outer sidetof abolt, deadlocking means for same, means for dogging the deadlockingmeans and a thumb piece for actuating both indicators and the floggingmeans.

1l. An extensible indicator for locks mounted in the lock casing, incon'lbination with a cam for moving same longitudinally. and meansoperable from the inner side ot' the door for actuating the cam.

l2. The combination with an indicator composed of sections adjustablysecured together, and `-n-.iountcrl in the lock case-and a spring fornormally holding same inwardly,v

ot' a cam engaging said indicator for moving same outwardly and meansoperable from the inner side of the door for actuating said cam.

13. The combination with a bolt, outer key actuated mechanism forretracting the bolt,

means for clogging the bolt and means for clogging said outer keyactuated mechanism, of an outer indicator and means for actuat- -ing thedogging means for the key actuated ing means, an outside indicator andmeans:r .for successively actuating the bolt deadlocky ing means and theindicator.

17. In a lock; the combination with a lock case, a slide located withinsaid case and havingr a cam surface, and means o erable from the innerside of the door for s ifting said slide, of a spring actuated plunger1o-v rated in the plane of movement of the cam face of the lslide andadapted to be projected outwardly thereby when the slide is moving' toone position.

In testimony whereof,.I have signed this .pecitcation in the presence oftwosubscribing witnesses.

ll- E N SCHOELL. Witnesses:

WARREN H. TAYLOR, J. A. GAYLon.

